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Diffstat (limited to 'src/gallium/auxiliary/util/u_hash_table.h')
-rw-r--r-- | src/gallium/auxiliary/util/u_hash_table.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_hash_table.h b/src/gallium/auxiliary/util/u_hash_table.h new file mode 100644 index 0000000000..feee881582 --- /dev/null +++ b/src/gallium/auxiliary/util/u_hash_table.h @@ -0,0 +1,95 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * General purpose hash table. + * + * @author José Fonseca <jrfonseca@tungstengraphics.com> + */ + +#ifndef U_HASH_TABLE_H_ +#define U_HASH_TABLE_H_ + + +#include "pipe/p_error.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * Generic purpose hash table. + */ +struct hash_table; + + +/** + * Create an hash table. + * + * @param hash hash function + * @param compare should return 0 for two equal keys. + */ +struct hash_table * +hash_table_create(unsigned (*hash)(void *key), + int (*compare)(void *key1, void *key2)); + + +enum pipe_error +hash_table_set(struct hash_table *ht, + void *key, + void *value); + +void * +hash_table_get(struct hash_table *ht, + void *key); + + +void +hash_table_remove(struct hash_table *ht, + void *key); + + +void +hash_table_clear(struct hash_table *ht); + + +enum pipe_error +hash_table_foreach(struct hash_table *ht, + enum pipe_error (*callback)(void *key, void *value, void *data), + void *data); + +void +hash_table_destroy(struct hash_table *ht); + + +#ifdef __cplusplus +} +#endif + +#endif /* U_HASH_TABLE_H_ */ |